P0420 & P0430: Replace stock cats or go magnaflow? Advice please
Hey guys, long time member here but I've basically been a ghost over the last few years. My cats finally took a shit on me and i need advice on what I should do.
I can't pass smog and I need to replace my cats. Here's where I need your guys' help:
Buy stock replacements, or buy magnaflow cats. Or chime in if you have an alternate option.
Also, am i just changing the 2 cats (right & left) on the header, or do i need to change all 4?
I replaced both AFR's and both O2's less than a year ago (OEM, not cheapo's) so don't worry about that. Performance-wise, my truck is bone stock.
Thank you in advance, im open to all opinions and advice. :top:
Hey guys, long time member here but I've basically been a ghost over the last few years. My cats finally took a shit on me and i need advice on what I should do.
I can't pass smog and I need to replace my cats. Here's where I need your guys' help:
Buy stock replacements, or buy magnaflow cats. Or chime in if you have an alternate option.
Also, am i just changing the 2 cats (right & left) on the header, or do i need to change all 4?
I replaced both AFR's and both O2's less than a year ago (OEM, not cheapo's) so don't worry about that. Performance-wise, my truck is bone stock.
Thank you in advance, im open to all opinions and advice. :top:
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